Results 51 to 60 of about 588,838 (198)
International Journal of Energy Research, Volume 2026, Issue 1, 2026.Water locking effect caused by surface tension severely restricts coalbed methane (CBM) productivity in multilayer reservoirs. The Songhe demonstration area features main target coal seams with overpressure, high gas content, and high gas saturation, presenting favorable CBM development conditions.
Zhu Liu +7 more
wiley +1 more source
, 2022 The eastern margin of Ordos Basin has a huge amount of coalbed methane resources, and has become one of the main coalbed methane producing areas in China.
Yinhua, LIU +5 more
core +1 more source
Optimization design of stress relief coalbed methane surface well in a high-gas mine
Frontiers in Earth ScienceCoalbed methane drainage through surface wells has become increasingly important in high-gas mines. Surface wells are prone to different types of deformations and failures owing to mining-induced effects.
Junhui Fu +5 more
doaj +1 more source
Geofluids, Volume 2026, Issue 1, 2026.To reveal the microscopic regulatory mechanisms of pore size and moisture content on methane occurrence and migration in low‐rank coal reservoirs, the Erlian Basin low‐rank coal was used as the research object; its molecular structural characteristics were characterized by elemental analysis, 13C NMR, and XPS; a coal macromolecular model was ...
Liwen Zhang +8 more
wiley +1 more source
Pressure monitoring and observed effects of mining at the Oak Grove, AL, coalbed degasification pattern [PDF]
"The U.S. Bureau of Mines and the United States steel corporation evaluated the progress of methane drainage at the Oak Grove, Alabama, degasification pattern. Coalbed pressures were monitored between December 1981 and November 1985. Formation pressures,
core +2 more sources
Youqicang pingjia yu kaifa, 2021 As a typical unconventional gas reservoir with low pressure, permeability and water cut, deep coalbed methane needs effective support fracturing to achieve good development effects, leading to large difference of liquid production in the whole life cycle
JIANG Yongping, YANG Song
doaj
Analysis of Gas Migration Characteristics and Controlling Factors in Nanopores of Deep Coal Seams
Geofluids, Volume 2026, Issue 1, 2026.Nanopores of various scales and morphologies in coal are important spaces for gas storage and migration. To deeply analyse the initial gas migration scale and characteristics in coal matrix micropores, this paper constructs an apparent permeability model describing the gas migration scale based on the gas transport mechanism, and analyses the ...
Ji Xiaofeng +5 more
wiley +1 more source
Shock and Vibration, Volume 2026, Issue 1, 2026.Carbon dioxide blasting technology plays a crucial role in current coal‐rock mass blasting engineering, predominantly employing bottom energy‐release methods. To address the limitations of existing bottom‐release approaches, including limited blasting propagation range and susceptibility to “tube ejection,” this study proposes a novel bilateral energy ...
Jinjing Zuo +4 more
wiley +1 more source
Prediction of coalbed methane productivity based on neural network models
河南理工大学学报. 自然科学版ObjectivesThe productivity of coalbed methane is mainly affected by geological and engineering factors. Clarifying the influence mechanism of these factors on the productivity of coalbed methane wells is the basis for achieving fine reservoir ...
JIN Yi +7 more
doaj +1 more source
Energy Exploration & Exploitation, 2020 Coalbed methane (CBM) resources are abundant in the Gujiao block, Xishan coalfield, China. However, few studies have been conducted on the coalbed methane geology of the Gujiao block.
Huang Bo +5 more
doaj +1 more source